EP1026719B1 - Tripping device for switches and switching contact arrangment - Google Patents
Tripping device for switches and switching contact arrangment Download PDFInfo
- Publication number
- EP1026719B1 EP1026719B1 EP00300716A EP00300716A EP1026719B1 EP 1026719 B1 EP1026719 B1 EP 1026719B1 EP 00300716 A EP00300716 A EP 00300716A EP 00300716 A EP00300716 A EP 00300716A EP 1026719 B1 EP1026719 B1 EP 1026719B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adjusting
- tripping
- tripping device
- shaft
- lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7463—Adjusting only the electromagnetic mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
Definitions
- the invention relates to a tripping device for switches and also a switch contact arrangement into which is built the tripping device in accordance with the invention.
- the object of the invention is to make available a tripping device for switches and a switch contact arrangement which ensure reliable operation, can be easily adjusted, and moreover are of simple and compact construction.
- the object is further attained with a switch contact arrangement having a plurality of switch contacts arranged adjacent to one another and a tripping device in accordance with the invention, wherein the lever element consists of an adjusting shaft that extends parallel to the axis of the tripping shaft and on which adjusting shaft are arranged a plurality of adjusting arms corresponding to the number of switch contacts.
- FIG. 1 A switch 1 equipped with the tripping device in accordance with the invention is shown in Fig. 1 .
- This switch 1 has a movable contact 2, which is mounted on the axis 3 of an actuating shaft 4 such that it can rotate.
- the actuating shaft 4 itself is mounted in a terminal housing (not shown) and has two diametrically opposed satellite axes 5 and 6, which are also rotated about the axis 3 when the actuating shaft 4 rotates.
- the axis 5 is the point of engagement for a linkage 7, which is connected to a latch 8.
- the latch 8 is mounted, such that it can pivot, on an axis 10 positioned on the switch housing 9; in case of an overcurrent or short circuit, the latch 8 is released by a latching mechanism 11 in order to permit the disconnected state of the contact 2 shown in Fig. 1 .
- the latching mechanism 11 can be actuated by a tripping lever 13 that pivots about an axis of rotation 12.
- the other end of the tripping lever 13 is in operative connection with a tripping shaft 14, which is mounted on an axis 15 supported by the switch housing 9.
- a cam 14a Designed on the tripping shaft 14 is a cam 14a, which can be pivoted clockwise in opposition to the force of a spring 14b wound about the axis 15 in Fig. 1 .
- a magnet yoke 16 mounted to the switch housing 9 in the bottom region of the switch.
- armature element 18 is arranged facing the magnet yoke.
- the flap 18 is additionally connected to a stationary section of the bus bar 17 by a spring 20, which loads the flap in the clockwise direction. In its upper region as shown in Fig.
- flap 18 is equipped with a clip 21 rigidly mounted thereon, which can be brought into contact with the cam 14a by pivoting of the flap in order to rotate the tripping shaft 14 and thereby actuate the latching mechanism 11 by means of the tripping lever 13 and thus finally initiate the tripping process in switch 1.
- the clip 21 can also be formed as one piece with the flap 18, preferably of metal.
- a lever element 23 Also mounted on the axis 15, by means of support arms 22 shown in Fig. 3 , is a lever element 23.
- the lever element 23 has an adjusting arm 24 which is equipped with an adjusting screw 25 for calibrating the tripping device, and a stationary lever arm 26 which extends to the side of the adjusting shaft 23 that is diametrically opposite adjusting arm 24.
- the end of the stationary lever arm 26 is in contact with a cam pin 27 of a rotary knob 28 mounted in a hole in the upper wall of the switch housing 9.
- the surface of the rotary knob 28 is equipped with a slot 29 to make it possible to adjust the rotary knob with the aid of a suitable tool, such as a screwdriver.
- An important advantage of the tripping device according to the invention explained above is that an extremely reliable adjustment mechanism is guaranteed by the interaction of the adjusting shaft 23 that is arranged, such that it can tilt, on the axis 15 of the tripping shaft 14 and the rotary knob that interacts therewith via a cam pin. Moreover, this mechanism is easy to produce and is compact in design.
- the tripping device in accordance with the invention thus has only a few elements, which can be accommodated in a space-saving manner laterally in the switch.
- the switch equipped with a tripping device shown in Figures 1 and 2 is characterized by the following method of operation:
- a person adjusting the switch 1 by turning rotary knob 28 sets the precise tilt position of the lever element 23 on the axis 15 and thus the distance between the flap 18 and the magnet yoke 16, as shown in detail in Fig. 2 .
- This is a fine adjustment as a function of the relatively greater length of the stationary lever arm 26 as compared to the adjustable arm 24. It must be noted here that a coarser adjustment of the distance L between the magnet yoke 16 and the flap 18 has been accomplished by turning the adjusting screw 25 during installation of the tripping device in the switch housing 9.
- the tripping device can also be used in a switch contact arrangement of switch contacts arranged next to each other in a row.
- the lever element takes the form of an adjusting shaft that extends along the row of switch contacts, parallel to the axis of the tripping shaft 14, and on which are arranged several adjusting arms 24 corresponding to the number of switching contacts.
- Formed on the adjusting shaft 23 is one lever arm 26, which is sufficient to actuate the adjusting shaft and the resultant pivoting of the flaps 18.
- the tripping sensitivity in each switch contact can be adjusted separately by means of the screws carried by each adjusting arm 24. As a result, individual calibration of each switch contact can be undertaken independently of the adjustment of rotary knob 28.
Description
- The invention relates to a tripping device for switches and also a switch contact arrangement into which is built the tripping device in accordance with the invention.
- Known from the printed document
EP-0,620,579 A1 is a tripping device for switches which has a magnetic actuating unit and a lever arrangement connected therewith. - Document
US-A-3421123 discloses a tripping device according to the preamble ofclaim 1. - The object of the invention is to make available a tripping device for switches and a switch contact arrangement which ensure reliable operation, can be easily adjusted, and moreover are of simple and compact construction.
- This object is attained with a tripping device according to
claim 1. - The object is further attained with a switch contact arrangement having a plurality of switch contacts arranged adjacent to one another and a tripping device in accordance with the invention, wherein the lever element consists of an adjusting shaft that extends parallel to the axis of the tripping shaft and on which adjusting shaft are arranged a plurality of adjusting arms corresponding to the number of switch contacts. Advantageous embodiments of the invention are defined in the dependent claims.
- The invention is described below with the aid of an exemplary embodiment and with reference to the drawings.
- They show:
- Fig. 1:
- a switch with a built-in tripping device;
- Fig. 2:
- an isolated view of the tripping device in
Fig. 1 ; and - Fig. 3:
- a perspective view of the switch shown in
Fig. 1 , which is built into a switch arrangement. - A
switch 1 equipped with the tripping device in accordance with the invention is shown inFig. 1 . Thisswitch 1 has amovable contact 2, which is mounted on theaxis 3 of an actuatingshaft 4 such that it can rotate. The actuatingshaft 4 itself is mounted in a terminal housing (not shown) and has two diametrically opposedsatellite axes axis 3 when the actuatingshaft 4 rotates. Theaxis 5 is the point of engagement for alinkage 7, which is connected to alatch 8. Thelatch 8 is mounted, such that it can pivot, on anaxis 10 positioned on the switch housing 9; in case of an overcurrent or short circuit, thelatch 8 is released by alatching mechanism 11 in order to permit the disconnected state of thecontact 2 shown inFig. 1 . - The
latching mechanism 11 can be actuated by atripping lever 13 that pivots about an axis ofrotation 12. The other end of thetripping lever 13 is in operative connection with atripping shaft 14, which is mounted on an axis 15 supported by the switch housing 9. Designed on thetripping shaft 14 is a cam 14a, which can be pivoted clockwise in opposition to the force of a spring 14b wound about the axis 15 inFig. 1 . - Mounted to the switch housing 9 in the bottom region of the switch is a
magnet yoke 16, which encircles anelectric bus bar 17 connected to one of the contacts of theswitch 1 and is supplied with current by the bus bar. Arranged facing the magnet yoke is anarmature element 18 in the form of a flap which is hinge-mounted by means of retainingsections 19 -- shown in detail inFig. 3 -- to a stationary section of the switch,, which is not shown in detail. Theflap 18 is additionally connected to a stationary section of thebus bar 17 by aspring 20, which loads the flap in the clockwise direction. In its upper region as shown inFig. 1 ,flap 18 is equipped with aclip 21 rigidly mounted thereon, which can be brought into contact with the cam 14a by pivoting of the flap in order to rotate thetripping shaft 14 and thereby actuate thelatching mechanism 11 by means of thetripping lever 13 and thus finally initiate the tripping process inswitch 1. - However, the
clip 21 can also be formed as one piece with theflap 18, preferably of metal. - Also mounted on the axis 15, by means of
support arms 22 shown inFig. 3 , is alever element 23. Thelever element 23 has an adjustingarm 24 which is equipped with an adjusting screw 25 for calibrating the tripping device, and astationary lever arm 26 which extends to the side of the adjustingshaft 23 that is diametrically opposite adjustingarm 24. The end of thestationary lever arm 26 is in contact with acam pin 27 of arotary knob 28 mounted in a hole in the upper wall of the switch housing 9. The surface of therotary knob 28 is equipped with aslot 29 to make it possible to adjust the rotary knob with the aid of a suitable tool, such as a screwdriver. - In the unactuated state of the magnet yoke, which is to say when the
contact 2 is closed and an overcurrent is not present, the adjusting screw 25 is in constant contact with an angled surface of theclip 21, which situation is ensured by a tensile force exerted by thespring 20 on theflap 18. In this state, it is possible to change the tilt setting of the lever element and the adjustingshaft 23 with respect to the axis 15 by adjusting therotary knob 28, and thus adjust the distance L shown inFig. 2 between theflap 18 and themagnet yoke 16. In this way the current at which the tripping device responds can be defined indirectly. - An important advantage of the tripping device according to the invention explained above is that an extremely reliable adjustment mechanism is guaranteed by the interaction of the adjusting
shaft 23 that is arranged, such that it can tilt, on the axis 15 of thetripping shaft 14 and the rotary knob that interacts therewith via a cam pin. Moreover, this mechanism is easy to produce and is compact in design. The tripping device in accordance with the invention thus has only a few elements, which can be accommodated in a space-saving manner laterally in the switch. - The switch equipped with a tripping device shown in
Figures 1 and2 is characterized by the following method of operation: - First, a person adjusting the
switch 1 by turningrotary knob 28 sets the precise tilt position of thelever element 23 on the axis 15 and thus the distance between theflap 18 and themagnet yoke 16, as shown in detail inFig. 2 . This is a fine adjustment as a function of the relatively greater length of thestationary lever arm 26 as compared to theadjustable arm 24. It must be noted here that a coarser adjustment of the distance L between themagnet yoke 16 and theflap 18 has been accomplished by turning the adjusting screw 25 during installation of the tripping device in the switch housing 9. - In the case of a short circuit, an overcurrent naturally occurs, which flows through the
electric bus bar 17. This activates themagnet yoke 16 to the extent that when a specific current is exceeded, the magnetic force generated by the magnet yoke is sufficient to attract theflap 18 in opposition to the tensile force exerted by thespring 20. In the course of the resulting pivoting motion of theflap 18, the cam 14a is pivoted clockwise inFig. 1 by theclip 21 until thetripping lever 13 is actuated. Actuation of thetripping lever 13 then tilts thelatching mechanism 11 such that it in turn can release thelatch 8 for a pivoting motion, upward inFig. 1 , about theaxis 10. This motion is caused by a spring which is not shown in detail inFig. 1 . The motion of thelinkage 7 that is coupled with the pivoting motion of thelatch 8 brings about a rotation of the actuatingshaft 4 by means of theaxis 5, and thus finally a disconnection of themovable contact 2 from the contact bus bars. - As shown in
Fig. 3 , the tripping device can also be used in a switch contact arrangement of switch contacts arranged next to each other in a row. To this end, the lever element takes the form of an adjusting shaft that extends along the row of switch contacts, parallel to the axis of thetripping shaft 14, and on which are arranged several adjustingarms 24 corresponding to the number of switching contacts. Formed on the adjustingshaft 23 is onelever arm 26, which is sufficient to actuate the adjusting shaft and the resultant pivoting of theflaps 18. The tripping sensitivity in each switch contact can be adjusted separately by means of the screws carried by each adjustingarm 24. As a result, individual calibration of each switch contact can be undertaken independently of the adjustment ofrotary knob 28.
Claims (4)
- A tripping device for switches (1), the tripping device comprising a magnet yoke (16), an armature element (18) that works therewith to actuate a tripping shaft (14), and a lever element (23) that can be tilted about an axis (15) of the tripping shaft for adjusting the distance (L) between the magnet yoke and the armature element, and has a stationary lever arm (26) that works in conjunction with the cam pin (27) of a rotary knob (28), characterised in that the lever element (23) has an adjustable-length adjusting arm (24) that works in conjunction with the armature element (18).
- A tripping device in accordance with claim 1 characterised in that the adjusting arm (24) of the lever element takes the form of an adjustable calibrating screw (25).
- A combination of a switch contact arrangement with a plurality of switch contacts (1) arranged adjacent to one another and a tripping device in accordance with one of claims 1 or 2, characterised in that the lever element (23) consists of an adjusting shaft extending parallel to the axis (15) of the tripping shaft (14), on which adjusting shaft are arranged a plurality of adjusting arms (24) corresponding to the number of switch contacts.
- The combination in accordance with claim 3 characterised in that the lever arm (26) is arranged diametrically opposite said adjusting arm (24) and offset therefrom.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19903911 | 1999-02-01 | ||
DE19903911A DE19903911B4 (en) | 1999-02-01 | 1999-02-01 | Tripping device for switches and switch contact arrangement |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1026719A2 EP1026719A2 (en) | 2000-08-09 |
EP1026719A3 EP1026719A3 (en) | 2001-04-25 |
EP1026719B1 true EP1026719B1 (en) | 2009-06-03 |
Family
ID=7896024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00300716A Expired - Lifetime EP1026719B1 (en) | 1999-02-01 | 2000-01-31 | Tripping device for switches and switching contact arrangment |
Country Status (6)
Country | Link |
---|---|
US (1) | US6218920B1 (en) |
EP (1) | EP1026719B1 (en) |
DE (1) | DE19903911B4 (en) |
ES (1) | ES2325471T3 (en) |
HU (1) | HU223915B1 (en) |
PL (1) | PL196134B1 (en) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
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US6369340B1 (en) * | 2000-03-10 | 2002-04-09 | General Electric Company | Circuit breaker mechanism for a contact system |
DE10013160B4 (en) * | 2000-03-17 | 2006-07-06 | Aeg Niederspannungstechnik Gmbh & Co Kg | Switch shaft unit for a switch |
DE10013161B4 (en) * | 2000-03-17 | 2004-02-05 | Aeg Niederspannungstechnik Gmbh & Co Kg | Combined tripping device for a circuit breaker |
WO2001069631A1 (en) * | 2000-03-17 | 2001-09-20 | Aeg Niederspannungstechnik Gmbh & Co., Kg | Selective tripping device for a circuit breaker |
DE10141123B4 (en) * | 2001-08-22 | 2004-01-29 | Aeg Niederspannungstechnik Gmbh & Co Kg | Tripping unit for circuit breakers |
US6744339B2 (en) | 2002-03-12 | 2004-06-01 | General Electric Company | Motor protection trip unit |
US6980069B2 (en) * | 2002-04-18 | 2005-12-27 | General Electric Company | Magnetic device for a magnetic trip unit |
US6794963B2 (en) * | 2002-04-24 | 2004-09-21 | General Electric Company | Magnetic device for a magnetic trip unit |
US7130173B2 (en) | 2003-07-08 | 2006-10-31 | Square D Company | Direct force armature for a trip assembly |
ITMI20042234A1 (en) | 2004-11-19 | 2005-02-19 | Abb Service Srl | AUTOMATIC SWITCH WITH RELEASE KINEMATISM USED BY MOBILE CONTACT |
US20080122563A1 (en) * | 2006-08-28 | 2008-05-29 | Ls Industrial Systems Co., Ltd. | Instantaneous trip mechanism for mould cased circuit breaker |
GB2441356B (en) * | 2006-08-29 | 2008-10-29 | Ls Ind Systems Co Ltd | Instantaneous trip mechanism for mould cased circuit breaker |
ES2311368B2 (en) * | 2006-09-06 | 2010-05-05 | Ls Industrial Systems Co, Ltd | INSTANTANEOUS SHOOTING MECHANISM FOR MOLDED MOLDED DISKLINDER. |
CN101145475B (en) * | 2006-09-12 | 2011-09-07 | Ls产电株式会社 | Moulded case type circuit breaker instant tripping device |
FR2906643B1 (en) * | 2006-09-29 | 2008-12-26 | Ls Ind Systems Co Ltd | INSTANTANEOUS TRIGGER MECHANISM FOR CIRCUIT BREAKER WITH MOLDED HOUSING. |
US7570139B2 (en) * | 2007-04-05 | 2009-08-04 | Eaton Corporation | Electrical switching apparatus, and trip actuator assembly and reset assembly therefor |
US7518476B2 (en) * | 2007-04-05 | 2009-04-14 | Eaton Corporation | Electrical switching apparatus and trip actuator reset assembly therefor |
US20090115556A1 (en) * | 2007-11-05 | 2009-05-07 | Square D Company | Divided adjustable armature for a circuit breaker |
US7936541B2 (en) * | 2008-05-08 | 2011-05-03 | Cooper Technologies Company | Adjustable rating for a fault interrupter and load break switch |
US7952461B2 (en) * | 2008-05-08 | 2011-05-31 | Cooper Technologies Company | Sensor element for a fault interrupter and load break switch |
US8004377B2 (en) * | 2008-05-08 | 2011-08-23 | Cooper Technologies Company | Indicator for a fault interrupter and load break switch |
US7920037B2 (en) * | 2008-05-08 | 2011-04-05 | Cooper Technologies Company | Fault interrupter and load break switch |
US20090277768A1 (en) * | 2008-05-08 | 2009-11-12 | Cooper Technologies Company | Low Oil Trip Assembly for a Fault Interrupter and Load Break Switch |
US8153916B2 (en) * | 2008-08-14 | 2012-04-10 | Cooper Technologies Company | Tap changer switch |
US8013263B2 (en) * | 2008-08-14 | 2011-09-06 | Cooper Technologies Company | Multi-deck transformer switch |
US7872203B2 (en) | 2008-08-14 | 2011-01-18 | Cooper Technologies Company | Dual voltage switch |
WO2010065733A1 (en) * | 2008-12-04 | 2010-06-10 | Cooper Technologies Company | Low force low oil trip mechanism |
DE112012005952T5 (en) * | 2012-02-28 | 2014-12-04 | Siemens Aktiengesellschaft | Thermo-magnetic circuit breaker tripping units and methods |
WO2013137846A1 (en) * | 2012-03-12 | 2013-09-19 | Siemens Aktiengesellschaft | Circuit breaker trip blocking apparatus, systems, and methods of operation |
CN103021749B (en) * | 2012-12-28 | 2015-01-07 | 常熟开关制造有限公司(原常熟开关厂) | Circuit breaker capable of quickly releasing |
FR3007573B1 (en) * | 2013-06-20 | 2015-07-17 | Schneider Electric Ind Sas | TRIGGER AND METHOD FOR MANUFACTURING SUCH TRIGGER |
KR101529590B1 (en) * | 2013-12-19 | 2015-06-29 | 엘에스산전 주식회사 | Instant trip device of circuit breaker |
DE102014203161B4 (en) | 2014-02-21 | 2021-12-02 | Siemens Aktiengesellschaft | Magnetic release device and overcurrent release device of an electrical switch as well as electrical switch and method for calibrating the magnetic release of a magnetic release device |
CN104183434B (en) * | 2014-07-16 | 2016-01-13 | 浙江天正电气股份有限公司 | A kind of residual current circuit breaker with reverse wiring structure |
US9324528B1 (en) * | 2014-11-17 | 2016-04-26 | General Electric Company | Magnetic trip mechanism for circuit breaker |
KR101708545B1 (en) * | 2015-01-05 | 2017-02-21 | 엘에스산전 주식회사 | Instant trip apparatus of molded case circuit breaker |
US9653224B2 (en) * | 2015-10-13 | 2017-05-16 | Eaton Corporation | Interruption apparatus employing actuator having movable engagement element |
KR102514032B1 (en) * | 2016-02-22 | 2023-03-24 | 엘에스일렉트릭(주) | Instant trip mechanism for molded case circuit breaker |
CN109449064A (en) * | 2018-12-15 | 2019-03-08 | 浙江正泰电器股份有限公司 | Electromagnetic tripping apparatus and breaker |
TWI755017B (en) * | 2020-08-12 | 2022-02-11 | 大陸商上海兆芯集成電路有限公司 | Contact arrangment, circuit board and electronic assembly |
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DE1067514B (en) * | 1955-10-15 | 1959-10-22 | Calor Emag Elektrizitaets Ag | Trip device for multi-pole circuit breakers |
US3345591A (en) * | 1966-06-29 | 1967-10-03 | Square D Co | Electric circuit breaker with improved tripping means including a heater strip in the thermal tripping means and adjustable air gaps in the magnetic tripping means |
US3421123A (en) * | 1967-06-19 | 1969-01-07 | Gen Electric | Electric circuit breaker with magnetic tripping means |
US3575679A (en) * | 1968-02-06 | 1971-04-20 | Westinghouse Electric Corp | Circuit breaker with improved trip adjustment means |
US3593234A (en) * | 1970-02-09 | 1971-07-13 | Cutler Hammer Inc | Trip adjustment means for instantaneous trip circuit breaker |
US3855557A (en) * | 1973-12-03 | 1974-12-17 | Ite Imperial Corp | Test trip means for circuit breaker |
FR2261615B1 (en) * | 1974-02-20 | 1978-12-01 | Unelec | |
US4983939A (en) * | 1989-10-05 | 1991-01-08 | Westinghouse Electric Corp. | Circuit breaker with adjustable low magnetic trip |
US5258733A (en) * | 1992-08-06 | 1993-11-02 | Eaton Corporation | Molded case circuit breaker having improved trip unit |
FR2704091B1 (en) * | 1993-04-16 | 1995-06-02 | Merlin Gerin | Device for adjusting the tripping threshold of a multipole circuit breaker. |
US5508670A (en) * | 1994-11-28 | 1996-04-16 | Eaton Corporation | Trip interlock assembly for a circuit breaker |
US5608367A (en) * | 1995-11-30 | 1997-03-04 | Eaton Corporation | Molded case circuit breaker with interchangeable trip unit having bimetal assembly which registers with permanent heater transformer airgap |
-
1999
- 1999-02-01 DE DE19903911A patent/DE19903911B4/en not_active Expired - Lifetime
-
2000
- 2000-01-28 HU HU0000367A patent/HU223915B1/en not_active IP Right Cessation
- 2000-01-28 PL PL338114A patent/PL196134B1/en not_active IP Right Cessation
- 2000-01-31 EP EP00300716A patent/EP1026719B1/en not_active Expired - Lifetime
- 2000-01-31 ES ES00300716T patent/ES2325471T3/en not_active Expired - Lifetime
- 2000-02-01 US US09/494,853 patent/US6218920B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2325471T3 (en) | 2009-09-07 |
US6218920B1 (en) | 2001-04-17 |
EP1026719A3 (en) | 2001-04-25 |
HUP0000367A3 (en) | 2002-03-28 |
HUP0000367A2 (en) | 2001-02-28 |
PL196134B1 (en) | 2007-12-31 |
HU223915B1 (en) | 2005-03-29 |
HU0000367D0 (en) | 2000-03-28 |
DE19903911B4 (en) | 2004-09-23 |
PL338114A1 (en) | 2000-08-14 |
EP1026719A2 (en) | 2000-08-09 |
DE19903911A1 (en) | 2000-08-10 |
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